Chemistry 0620 · IGCSE · Identification of ions and gases

Identification of ions and gases — practice question

Acidified aqueous silver nitrate is added to a test tube that contains aqueous chloride ions. The test tube is then placed in direct sunlight. Which row gives the observations and explains what occurs to the reaction mixture?

  • Ayellow precipitate; precipitate dissolves; silver chloride forms
  • Byellow precipitate; precipitate turns grey; silver ions are reduced
  • Cwhite precipitate; precipitate dissolves; silver chloride forms
  • Dwhite precipitate; precipitate turns grey; silver ions are reduced

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